... large-size, extra-large-size, slewing, non-standard and other special bearings. With advanced science and technology, the company ... and multi-large bearing, slewing bearings, nong-standard bearings and other special bearings. 1. Four-point contact ball slewing bearing ( ... in WD: 1. Nylon bearings, nylon-coated bearings and other special material bearings; 2. Bearings of irregular dimensions; 3. ...